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PAR-CliP - A Method to Identify Transcriptome-wide the Binding Sites of RNA Binding Proteins
Published on: July 2, 2010
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Multiplexed transcriptome discovery of RNA-binding protein binding sites by antibody-barcode eCLIP
Daniel A Lorenz1, Hsuan-Lin Her2,3,4, Kylie A Shen1
1Eclipse Bioinnovations, San Diego, CA, USA.
Nature Methods
|December 22, 2022
Summary
A new antibody-barcode enhanced CLIP (eCLIP) method allows simultaneous analysis of multiple RNA-binding proteins (RBPs). This technique offers comparable performance to traditional eCLIP but significantly increases scalability and efficiency.
Area of Science:
- Molecular Biology
- Genomics
- Biochemistry
Background:
- RNA-binding proteins (RBPs) play crucial roles in gene regulation.
- Identifying RBP binding sites is essential for understanding RNA processing.
- Current enhanced CLIP (eCLIP) methods are time-consuming and not easily scalable for multiple targets.
Purpose of the Study:
- To develop a scalable method for identifying RNA binding sites of multiple RBPs concurrently.
- To overcome the limitations of existing eCLIP protocols regarding hands-on time and parallel processing.
Main Methods:
- Introduced antibody-barcode eCLIP, a novel technique utilizing DNA-barcoded antibodies.
- Employed proximity ligation to link DNA oligonucleotides to RBP-protected RNA fragments.
- Enabled simultaneous interrogation of multiple RBPs.
Main Results:
- Achieved performance comparable to the established eCLIP protocol.
- Demonstrated a significant increase in experimental scalability.
- Maintained similar material requirements as a single eCLIP experiment.
Conclusions:
- Antibody-barcode eCLIP provides a highly scalable and efficient alternative for RBP binding site identification.
- This method facilitates the simultaneous analysis of multiple RBPs, accelerating research in RNA biology.
- The protocol maintains the efficiency and accuracy of eCLIP while enhancing throughput.
